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$356+ Cheap flights from Seattle (SEA) to London City (LCY)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LCY
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Seattle to London City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to London City (LCY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 20, 2025.

Round-trip from

$568
(Delta)

One-way from

$356
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$685
From Seattle/Tacoma Intl to London City
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One-way flight from Seattle/Tacoma Intl to London City
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Highest demand for flights based on searches. 15% potential increase in price ($137 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Seattle to London City

Cheapest flights from Seattle to London City
Explore the most affordable flight options available from Seattle to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/265:40 pmSEA - LCY
1 stop15h 00mDelta
Wed 9/38:40 amLCY - SEA
1 stop15h 25mDelta
Deal found 8/18$568
This Virgin Atlantic deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:00 amSEA - LCY
2 stops17h 15mVirgin Atlantic
Mon 9/297:00 pmLCY - SEA
1 stop24h 45mVirgin Atlantic
Deal found 8/18$572
This Virgin Atlantic deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/292:10 pmSEA - LCY
1 stop19h 10mVirgin Atlantic
Wed 10/295:50 pmLCY - SEA
2 stops29h 42mVirgin Atlantic
Deal found 8/18$578
This Virgin Atlantic deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:30 amSEA - LCY
2 stops14h 40mVirgin Atlantic
Wed 11/199:20 amLCY - SEA
2 stops20h 56mVirgin Atlantic
Deal found 8/19$582
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:10 amSEA - LCY
2 stops31h 00mBritish Airways
Tue 10/2111:20 amLCY - SEA
2 stops41h 26mBritish Airways
Deal found 8/18$615
This KLM deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/51:55 pmSEA - LCY
1 stop13h 45mKLM
Fri 9/2610:00 amLCY - SEA
1 stop14h 05mKLM
Deal found 8/19$618
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/103:00 pmSEA - LCY
2 stops46h 10mBritish Airways
Thu 9/2511:20 amLCY - SEA
2 stops41h 30mBritish Airways
Deal found 8/18$621
This Virgin Atlantic deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/61:35 pmSEA - LCY
2 stops19h 05mVirgin Atlantic
Sun 10/198:45 pmLCY - SEA
1 stop23h 05mVirgin Atlantic
Deal found 8/19$622
This Virgin Atlantic deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/115:40 pmSEA - LCY
1 stop16h 50mVirgin Atlantic
Thu 9/189:20 amLCY - SEA
2 stops21h 05mVirgin Atlantic
Deal found 8/18$628
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1111:34 amSEA - LCY
2 stops41h 01mBritish Airways
Mon 11/175:00 pmLCY - SEA
2 stops36h 18mBritish Airways
Deal found 8/18$639
This Trip.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/32:00 pmSEA - LCY
1 stop13h 40mKLM
Fri 10/1010:00 amLCY - SEA
1 stop14h 05mKLM
Deal found 8/19$640

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to London City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Seattle to London City Airport that are best for you.

Fly from

Seattle

Fly to

London City

Route

Depart

Return

Price

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 10/7

2:00 pm-5:20 pm

1 stop19h 20m

London City

Tue 10/21

9:20 am-4:05 pm

1 stop14h 45m

$568

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 9/14

5:40 pm-4:40 pm

1 stop15h 00m

London City

Fri 9/26

10:00 am-4:05 pm

1 stop14h 05m

$568

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 9/29

2:10 pm-5:20 pm

1 stop19h 10m

London City

Wed 10/29

5:50 pm-12:45 pm

1 stop25h 55m

$568

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 9/2

5:40 pm-4:40 pm

1 stop15h 00m

London City

Wed 9/17

9:20 am-4:05 pm

1 stop14h 45m

$568

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 9/30

1:55 pm-5:20 pm

1 stop19h 25m

London City

Wed 10/29

8:05 pm-12:45 pm

1 stop23h 40m

$568

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 9/2

5:40 pm-4:40 pm

1 stop15h 00m

London City

Thu 9/11

8:40 am-4:05 pm

1 stop15h 25m

$568

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 11/23

3:00 pm-7:35 pm

1 stop20h 35m

London City

Mon 12/8

6:55 pm-11:50 am

1 stop24h 55m

$568

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 1/7

3:10 pm-4:35 pm

1 stop17h 25m

London City

Wed 1/14

5:50 pm-11:50 am

1 stop26h 00m

$568

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 11/19

6:00 am-8:10 am

2 stops18h 10m

London City

Mon 11/24

8:05 pm-11:45 am

1 stop23h 40m

$572

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 10/14

2:05 pm-9:40 pm

2 stops23h 35m

$356

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 18 results
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Best time to book a flight from Seattle to London City

Have a flexible travel schedule? Discover the best time to fly to London City from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to London City Airport

What is the cheapest time of day to fly from SEA to LCY?

Find hourly flight availability from Seattle to London City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

When flying from Seattle to London City Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing London City

Get insights into the airlines that provide service to London City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London City. Reviews last updated August 20, 2025.
Get a feel of what it's like to fly with Scandinavian Airlines from Seattle to London City Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,471 reviews

Comfort

7.3

Crew

8.0

Food

6.6

Boarding

7.6

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu
Scandinavian Airlines
7.4
Good
1,471 reviews
Scandinavian Airlines
7.4
Good
1,471 reviews

Comfort

7.3

Crew

8.0

Food

6.6

Boarding

7.6

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu

Related info for your journey

Find useful and relevant information for your journey from Seattle to London City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to London City?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to London City from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to London City should be relatively easy as there are 0 daily outbound flights to London City from 1 airline.

  • How long is the flight from Seattle to London City Airport?

    A quick flight from Seattle to London City Airport can take about 15h. Virgin Atlantic provides one of the quickest options available for as low as $568. Seattle and London City Airport are separated by a distance of 4794 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Seattle to London City Airport round-trip?

    According to our current data, Scandinavian Airlines ($962), offers the cheapest pricing from Seattle to London City Airport.

  • Can I find deals for flights from Seattle to London City that include hotel bookings?

    Yes. In addition to deals on Seattle to London City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to London City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to London City.

  • Can I find deals for business class flights from Seattle to London City?

    Yes. Cheapflights offers flight deals from Seattle to London City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to London City Airport?

    Currently, April is the cheapest month in which you can book a flight from Seattle to London City Airport (average of $686). Flying from Seattle to London City Airport in July is currently the most expensive (average of $1,046). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Southend-on-Sea
Harrow
Canterbury
Croydon
Dartford
Dover
Orpington
Gatwick
Borehamwood
Aylesbury
Chelmsford
Bedford
Folkestone
Chichester
Arundel
Eastbourne
Milton Keynes

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Seattle to London City

Discover the top airline that operate flights from Seattle to London City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$962Average$1,000FlexibilityNo cancel feeOn-time77%

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